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Finding the Fourth Proportional to 279,438.80, 418,334.52 and 184,494.80

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Solution

The fourth proportional to 279,438.80, 418,334.52 and 184,494.80 is: 276,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,438.80 : 418,334.52 = 184,494.80 : x
  2. Step 2: Convert to fraction form
    279,438.80/418,334.52 = 184,494.80/x
  3. Step 3: Cross multiply
    279,438.80x = 418,334.52 × 184,494.80
  4. Step 4: Simplify right side
    279,438.80x = 77,180,543,600.50
  5. Step 5: Solve for x
    x = 77,180,543,600.50/279,438.80
  6. Step 6: Final answer
    x = 276,198.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.